Uterine caliper and depth gauge

Patent · 01 January 1977

OSTI ID:862798

King, Loyd L ^[1]; Wheeler, Robert G ^[2]; Fish, Thomas M ^[3]

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1. Benton City, WA
2. Richland, WA
3. Kennewick, WA

A uterine caliper and sound consisting of an elongated body having outwardly biased resilient caliper wings and a spring-loaded slidable cervical stop. A slide on the body is operatively connected to the wings by a monofilament and operates with respect to a first scale on the body as a width indicator. A rod extending longitudinally on the body is connected to the cervical stop and cooperates with a second scale on the body as a depth indicator. The instrument can be positioned to measure the distance from the outer cervical ostium to the fundus, as read on said second scale. The wings may be allowed to open by moving the slide, and when the wings engage the utero-tubal junctions, the width may be read on said first scale. By adjustment of the caliper wings the instrument may be retracted until the resistance of the inner ostium of the cervix is felt, enabling the length of the cervical canal to be read directly by the position of the longitudinal indicator rod with respect to said second scale. The instrument may be employed to measure the width of the uterine cavity at any position between the inner ostium of the cervix and the fundus.

• Research Organization: BATTELLE MEMORIAL INSTITUTE
• DOE Contract Number: AC06-76RL01830
• Assignee: United States of America as represented by Secretary of (Washington, DC)
• Patent Number(s): US 4016867
• OSTI ID: 862798
• Country of Publication: United States
• Language: English

Related Subjects

/600/33/
adjustment
allowed
biased
caliper
canal
cavity
cervical
cervix
connected
consisting
cooperates
depth
directly
distance
elongated
employed
enabling
engage
extending
extending longitudinally
fundus
gauge
indicator
inner
instrument
junctions
length
longitudinal
longitudinally
measure
monofilament
moving
operates
operatively
operatively connected
ostium
outer
outwardly
position
positioned
resilient
resistance
respect
retracted
rod
rod extending
scale
slidable
slide
sound
spring-loaded
stop
uterine
uterine caliper
uterine cavity
utero-tubal
width
wings